79289980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51487}}^1$

素因数の和:51514

約数の個数: 48

約数和(自身を含む): 207599616

約数和(自身を除く): 128309636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 51487, 102974, 205948, 257435, 360409, 514870, 566357, 720818, 1029740, 1132714, 1441636, 1802045, 2265428, 2831785, 3604090, 3964499, 5663570, 7208180, 7928998, 11327140, 15857996, 19822495, 39644990, 79289980]

約数ペア:

[(1, 79289980), (2, 39644990), (4, 19822495), (5, 15857996), (7, 11327140), (10, 7928998), (11, 7208180), (14, 5663570), (20, 3964499), (22, 3604090), (28, 2831785), (35, 2265428), (44, 1802045), (55, 1441636), (70, 1132714), (77, 1029740), (110, 720818), (140, 566357), (154, 514870), (220, 360409), (308, 257435), (385, 205948), (770, 102974), (1540, 51487)]